My load is 76.0 grains of RL22 under the 180 grain Accubond...sub m.o.a. all of the time, with some mighty small groups on a regular basis. It is a max load in my rifle and averages 3,182 fps out of my 26" tube.
I tried a lot of different combinations in this rifle...none of which were "bad", but the above mentioned load made this gun a real shooter.
Go RL22 and don't look back.